User interface of a control unit



FIG. 1 is a front view of a user interface of a control unit in accordance with the present invention;

FIG. 2 is a front view of another user interface of a control unit in accordance with the present invention, having a frosted, reflective, or shiny front surface, with user interface elements of the control unit illuminated and thus visible through the frosted, reflective, or shiny front surface; and,

FIG. 3 is a front view of the user interface of FIG. 2 with user interface elements of the control unit not illuminated.

In FIGS. 1-2, the central circular shape, as well as the arcuate shape above the central circular shape, are display elements of the user interface of the control unit, and the two circular shapes to the left and right of the central circular shape are button elements of the user interface.

In FIGS. 2-3, the shade lines show a frosted, reflective, or shiny front surface, and not surface ornamentation.

In FIG. 2, the central circular shape, the arcuate shape above the central circular shape, and the two circular shapes to the left and right of the central circular shape are all in an illuminated state, and thus visible through the frosted, reflective, or shiny surface of FIG. 2.

In FIG. 3, the central circular shape, the arcuate shape above the central circular shape, and the two circular shapes to the left and right of the central circular shape of FIG. 2 are shown not illuminated, and thus not visible through the frosted, reflective, or shiny surface of FIG. 2.

The portions illustrated in broken lines on the figures illustrate environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a user interface of a control unit, as shown and described. 